I believe I may have found a heating solution for the greenhouse. It’s a radiant space heater made out of terracotta pots using candles to create heat and it is quite simple to make.
All you need is one larger pot and one smaller pot, a bolt, 4 washers and two nuts. You simply place a washer over the top of the drainage hole of the larger pot and insert a bolt. On the inside of the pot add another washer and then twist on a nut.
Then turn the pot right side up and put on the next washer. Then lower the smaller pot down on the bolt and then add the final washer and nut.
The best candles to use are the candles in glass jars. I couldn’t find any except scented ones so I decided to use medium-sized pillar candles. I am not sure how well they will work since the clay will become very hot. Remember to place your candles on a tray of some kind. I am using a deep clay saucer.
I used bricks to elevated the pots for air flow. Also, in this case I have the whole thing resting upon a paving stone because the floor of the greenhouse is Cypress mulch. The temperature of the pots can reach about 160 f. or 71 c. so you need to be careful not to touch it bare handed or leave items too close to it. Even if the candles go out the pot will continue to radiate heat for a few hours. You can also use much smaller pots and about four tea lights to create radiant heat for a small room indoors!
In other news I have faced my Nemesis! I managed to put up a few shelves and began organizing the horrid mess. I hope to work some more on it next weekend.